Disassemble NXT 1

Daughterboards Display daughterboard Connector to the motherboard that you can disconnect Bluetooth daughterboard Speaker on the display daughterboard is permanently connected with the motherboard by two wires

Top of the motherboard 3

Bottom of the motherboard 4

Hardware block diagram 5

Atmel ARM processor – AT91SAM7S256 – 32-bit – 256KB FLASH, 64KB RAM – 48 MHz 6

Atmel AVR processor – ATmega48 – 8-bit – 4KB FLASH, 512B RAM – 8 MHz 7

Four input ports – Sound sensor – Image sensor – ……. 8

Three output ports – Motors – ……. 9

Display – 100 x 64 pixel LCD 10

Bluetooth – CSR BlueCore 4 – 1 MB FLASH, 47 KB RAM – 26 MHz 11

Side of the Bluetooth daughterboard MB FLASH memory from ST CSR BlueCore 4